Element4 Modore 75H, Installation & User Manual

Page: 28 / 36

28
APPENDICES
The first 3 type N bends (from vertical to horizontal) do not need
to be included in your calculations. The next type N bends are
each calculated as 1 horizontal meter in the THS.
For a type Q bend (horizontal to horizontal) the following applies:
• 90° bend in the horizontal section counts as 2 horizontal
meters in the THS.
• 45° bend in the horizontal section counts as 1 horizontal
meter in the THS
Extraction sections in a 45° upward pipe:
• 45° upward sections are calculated both vertically and
horizontally.
E General rules for flue gas extraction
E.1 Power-Fan
For flue configurations that do not function on natural draft,
the Power-Fan can be used. A maximum discharge length of 36
meters horizontally and vertically together is then possible.
For extensive installation instructions and the operation of the
Power-Fan we refer to the manual of the Power-Fan.
E-2 Determining the flue gas extraction diameter:
The general rule is that you must always adhere to a flue diameter
of 200/130. You always start with a vertical length of ½ meter
Except :
• When the stove flue pipe connection is 150/100 mm.
• when your flue only gradates vertically, in which case you
may taper directly onto the stove, to a diameter of 150/100.
• (Barring category 3 stoves)
Determining maximum vertical length:
If you have tapered your flue gas extraction as per the above,
to a diameter of 150/100, then the total maximum permitted
vertical length of your flue gas extraction is 11 meters. If you are
using a diameter of 200/130 then your maximum total length is
22 meters.
Determining maximum horizontal length:
In order to ascertain whether your intended extraction shall
function properly, a stove category is determined.
After you have determined in which category your fire falls, you
search for the corresponding calculation tables.
Each category refers to a table. Each appendix has two tables:
1. A table for horizontal outlet.
2. A table for vertical outlet
You must use the table applicable to you. You calculate your
total vertical section (TVS) as well as your total horizontal section
(THS). In the table you will find advice; TVS on the vertical axis
and THS on the horizontal axis.
Calculating the Total Vertical Section (TVS):
You calculate the Total Vertical Section by adding up all vertical
upward sections in the extraction gradation.
Calculating the Total Horizontal Section (THS):
You calculate the Total Horizontal Section by adding up all
horizontal parts in the extraction gradation.
Beware of bends!
Bends provide no extra resistance in the system and must
therefore be included in the TVS and THS.
There are 2 bend types:
• 45° and 90° bends from vertical to horizontal and vice versa.
(Type N)
• 45° and 90° bends from horizontal to horizontal (Type Q)
Afbeelding E-1: Position of the reduction plate